Trace number 358659

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT4JPseudoResolution 2007-03-23SAT 1.3008 0.989805

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111223416.opb
MD5SUM97d777a76af6dd4a37c6649bc0f315d3
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.026995
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1208
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.07/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.07/0.14	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.07/0.14	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.07/0.15	c no version file found!!!
0.07/0.15	c sun.arch.data.model	32
0.07/0.15	c java.version	1.6.0
0.07/0.15	c os.name	Linux
0.07/0.15	c os.version	2.6.9-22.EL.rootsmp
0.07/0.15	c os.arch	i386
0.07/0.15	c Free memory 1651659224
0.07/0.15	c Max memory 1654456320
0.07/0.15	c Total memory 1654456320
0.07/0.15	c Number of processors 2
0.19/0.20	--- Begin Solver configuration ---
0.19/0.20	c Stops conflict analysis at the first Unique Implication Point
0.19/0.20	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.19/0.20	c Learn all clauses as in MiniSAT
0.19/0.20	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.19/0.20	c VSIDS like heuristics from MiniSAT using a heap
0.19/0.20	c No reason simplification
0.19/0.20	c --- End Solver configuration ---
0.19/0.21	c solving /tmp/evaluation/358659-1176916834/instance-358659-1176916834.opb
0.19/0.21	c reading problem ... 
0.30/0.34	c ... done. Wall clock time 0.131s.
0.30/0.34	c CPU time (experimental) 0.28s.
0.30/0.34	c #vars     169
0.30/0.34	c #constraints  101
1.22/0.95	c starts		: 8
1.22/0.95	c conflicts		: 4083
1.22/0.95	c decisions		: 5895
1.22/0.95	c propagations		: 72832
1.22/0.95	c inspects		: 343376
1.22/0.95	c learnt literals	: 0
1.22/0.95	c learnt binary clauses	: 0
1.22/0.95	c learnt ternary clauses	: 0
1.22/0.95	c learnt clauses	: 4083
1.22/0.95	c root simplifications	: 0
1.22/0.95	c removed literals (reason simplification)	: 0
1.22/0.95	c reason swapping (by a shorter reason)	: 0
1.22/0.95	c Calls to reduceDB	: 0
1.22/0.95	c speed (decisions/second)	: 9679.802955665025
1.22/0.95	c non guided choices	38
1.22/0.95	s SATISFIABLE
1.22/0.95	v -x1 -x2 -x3 -x4 x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28
1.22/0.95	v -x29 -x30 -x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 x51 -x52 -x53 -x54
1.22/0.95	v -x55 -x56 -x57 -x58 -x59 -x60 -x61 x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80
1.22/0.95	v -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 x91 -x92 x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105
1.22/0.95	v -x106 -x107 x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 x124 -x125 -x126
1.22/0.95	v -x127 -x128 -x129 -x130 x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147
1.22/0.95	v -x148 -x149 -x150 -x151 -x152 -x153 x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 x165 -x166 -x167 -x168
1.22/0.95	v -x169
1.22/0.95	c Total wall clock time (ms): 0.744

Verifier Data (download as text)

OK	0

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node21/watcher-358659-1176916834 -o ROOT/results/node21/solver-358659-1176916834 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/358659-1176916834/sat4jPseudoResolution.jar /tmp/evaluation/358659-1176916834/instance-358659-1176916834.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.82 0.97 0.98 2/77 13642
/proc/meminfo: memFree=1520000/2055920 swapFree=4160292/4192956
[pid=13642] ppid=13640 vsize=140 CPUtime=0
/proc/13642/stat : 13642 (java) R 13640 13642 12416 0 -1 0 27 0 0 0 0 0 0 0 19 0 1 0 139600724 143360 13 18446744073709551615 134512640 134550740 4294956560 18446744073709551615 8379836 0 0 4096 0 0 0 0 17 1 0 0
/proc/13642/statm: 37 20 14 9 0 3 0

[startup+0.094452 s]
/proc/loadavg: 0.82 0.97 0.98 2/77 13642
/proc/meminfo: memFree=1520000/2055920 swapFree=4160292/4192956
[pid=13642] ppid=13640 vsize=1777844 CPUtime=0.07
/proc/13642/stat : 13642 (java) S 13640 13642 12416 0 -1 0 3871 0 1 0 4 3 0 0 18 0 7 0 139600724 1820512256 3614 18446744073709551615 134512640 134550740 4294956400 18446744073709551615 4294960144 0 0 0 23755 18446744073709551615 0 0 17 1 0 0
/proc/13642/statm: 444461 3614 1096 9 0 442097 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1777844

[startup+0.101452 s]
/proc/loadavg: 0.82 0.97 0.98 2/77 13642
/proc/meminfo: memFree=1520000/2055920 swapFree=4160292/4192956
[pid=13642] ppid=13640 vsize=1780108 CPUtime=0.07
/proc/13642/stat : 13642 (java) S 13640 13642 12416 0 -1 0 3964 0 1 0 4 3 0 0 18 0 12 0 139600724 1822830592 3706 18446744073709551615 134512640 134550740 4294956400 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/13642/statm: 445027 3706 1122 9 0 442646 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1780108

[startup+0.301474 s]
/proc/loadavg: 0.82 0.97 0.98 2/77 13642
/proc/meminfo: memFree=1520000/2055920 swapFree=4160292/4192956
[pid=13642] ppid=13640 vsize=1781392 CPUtime=0.3
/proc/13642/stat : 13642 (java) S 13640 13642 12416 0 -1 0 5105 0 1 0 25 5 0 0 18 0 12 0 139600724 1824145408 4844 18446744073709551615 134512640 134550740 4294956400 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/13642/statm: 445348 4844 1264 9 0 442960 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1781392

[startup+0.701517 s]
/proc/loadavg: 0.82 0.97 0.98 2/77 13642
/proc/meminfo: memFree=1520000/2055920 swapFree=4160292/4192956
[pid=13642] ppid=13640 vsize=1784820 CPUtime=0.94
/proc/13642/stat : 13642 (java) S 13640 13642 12416 0 -1 0 6700 0 1 0 88 6 0 0 18 0 13 0 139600724 1827655680 5834 18446744073709551615 134512640 134550740 4294956400 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/13642/statm: 446205 5834 1307 9 0 443817 0
Current children cumulated CPU time (s) 0.94
Current children cumulated vsize (KiB) 1784820

Solver just ended. Dumping a history of the last processes samples

[startup+0.901539 s]
/proc/loadavg: 0.82 0.97 0.98 2/77 13642
/proc/meminfo: memFree=1520000/2055920 swapFree=4160292/4192956
[pid=13642] ppid=13640 vsize=1784820 CPUtime=1.22
/proc/13642/stat : 13642 (java) S 13640 13642 12416 0 -1 0 7031 0 1 0 116 6 0 0 18 0 13 0 139600724 1827655680 6154 18446744073709551615 134512640 134550740 4294956400 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/13642/statm: 446205 6154 1311 9 0 443817 0
Current children cumulated CPU time (s) 1.22
Current children cumulated vsize (KiB) 1784820

Child status: 10
Real time (s): 0.989805
CPU time (s): 1.3008
CPU user time (s): 1.23481
CPU system time (s): 0.065989
CPU usage (%): 131.42
Max. virtual memory (cumulated for all children) (KiB): 1784820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.23481
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7154
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 367
involuntary context switches= 277

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Wed Apr 18 17:20:34 UTC 2007

IDJOB= 358659
IDBENCH= 1230
IDSOLVER= 159
FILE ID= node21/358659-1176916834

PBS_JOBID= 4595232

Free space on /tmp= 66387 MiB

SOLVER NAME= SAT4JPseudoResolution 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111223416.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/358659-1176916834/sat4jPseudoResolution.jar /tmp/evaluation/358659-1176916834/instance-358659-1176916834.opb           
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-358659-1176916834 -o ROOT/results/node21/solver-358659-1176916834 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/358659-1176916834/sat4jPseudoResolution.jar /tmp/evaluation/358659-1176916834/instance-358659-1176916834.opb           

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  97d777a76af6dd4a37c6649bc0f315d3

RANDOM SEED= 718261297

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1520408 kB
Buffers:         28036 kB
Cached:         439300 kB
SwapCached:      10840 kB
Active:         100000 kB
Inactive:       394128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1520408 kB
SwapTotal:     4192956 kB
SwapFree:      4160292 kB
Dirty:            3752 kB
Writeback:           0 kB
Mapped:          30520 kB
Slab:            26880 kB
Committed_AS:  1030272 kB
PageTables:       1788 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66387 MiB

End job on node21 on Wed Apr 18 17:20:35 UTC 2007